EFFICIENTLY BLEACH: Containing bleaching ingredients, Vacplus toilet bowl cleaner tablets can efficiently eliminate urine scale, limescale, rust stains and other stubborn dirt while removing foul and pungent odor in the toilet with every single flush. If you feel the smell of bleach every time, don’t worry, it is the powerful cleaning ingredients functioning. EFFECTIVELY FRESHEN: During the interval between two flushes, the dissolved ingredients of Vacplus bleach toilet bowl cleaners automatically accumulate and form a protective water film, preventing stains from adhering and maintaining the luster at any time. LASTINGLY CLEAN: Equipped with slow-releasing technology, each Vacplus toilet cleaner with bleach continuously cleans the toilet for up to 15 days. With 20 packs for replacement use, Vacplus toilet tablets can keep the toilet bowl fresh for more than 10 months. EASY OPERATION: BRUSH THE TOILET BOWL FIRST BEFORE EACH USE! Simply remove the pouch and drop one tablet into the toilet tank. Then, the toilet bowl cleaners with bleach will automatically erase the rust and stains with every flush, saving precious time and energy for you. NEUTRAL INGREDIENTS: The neutral and mild formulas enable Vacplus toilet bowl cleaners to thoroughly clean toilet bowls without damaging any metal or plastic parts in the plumbing or septic tank system, making toilet cleaning easy and hassle-free.